Window-cleaning device.



PATENTEE APE. 2, 19071 E. J. CLARKE. WINDOW CLEANING DEVICE.

APPLICATION FILED DBO.13,1906.

LV/YNESSES Nrrnn srnrns Parana onirica.

ROBERT J. CLARKE, OF PITTSBURG, PENNSYLVANIA. WINDOW-CLEANING DEVICE..

Specication of Letters Patent.

.lppiication inea December 13.1906. sedano. 347.680.

Patented April 2, 1907.

ence being had therein to the accompanying drawings.

This invention relates to window-cleaning devices; and the invention hasfor its object to provide a novel attachment for streetf cars forcleaning the window in front of the motorman or operator of thecar,`said deviceembodying positive and reliable means that can beleasilyactuated by the motorman or operatorvof the car to remove frost, snow,or water that would tend to interfere with the transparency of thewindow. l

Another object of this invention is to provide a window-cleaning devicethat can be any desired time.

readily used upon the windows of various kinds of vehicles or cars, suchas Pullman cars, the device being constructed whereby it can be easilyand quickly manipulated at 'With the above and other objectsin view,

which will more readily appear as the inven-A tion is better understood,the Same consists in the novel construction, combination, andarrangement of parts to be hereinafter more fully described and thenspecifically pointed out in the appended claim.

Referring to the drawings forming artof this specification, likenumerals of re erenc'e designate corresponding parts throughout theseveral views, in whichr Figure 1 is a front elevation of a street-carequipped 4with my improved Window-clean ing device.' Fig. 2 is avertical sectional view taken on the line a; of Fig. ,1. 3 is a similarview taken on the line y y of Fig. 1. Fig. 4 is a fragmentary elevationof a portion of a car, illustrating one of the guides.4 Fig.5 1s alperspective view of a portionof one of the guides. Fig. 6 is a detailperspective view of a portion of a movable rod used in connection withthe Window-cleaning device. Fig. '7 is a cross-sectional view of thesame. Fig. 8 isa vertical sectional view of a portion of vmy improveddevice, illustrating a slight. modification in the construction thereof;and F 9 is an elevation of a window equipped with my improved device,illustrating a lmodified form of actuating means.

to its normal To put my invention into practice, I provide the. siderails 1 of a window 2 with vertlcally-disposed channel-shaped guldes 3,

wthese' guides bein secured to the outer sides n the guides are mountedof the rails 1. movable blocks 4, carrying a transverse rod 5, in whichis secured a scraper 6 or piece of resilient cleansing or abrasivematerial', vas rubber, metal, carborundum, felt, or leather.

The scraper is adapted to engage the Window 2,"and in order that theentire surface of the window may be cleaned of any foreign matterthatvwould tend to obliterate a person s vision through thel same Iprovide `novel means-for moving the scraper over the Window. lAttachedto the blocks 4 are ilat bandsprings 7, normally maintained undertension in a suitable casing 8, carried upon the inner side of thewindow 2, said springs passing through slots 9, formed'in the rails 1 atthe upper ends ofthe guides 3. 'The fiat-band? springs 9 are adapted toretain the scraper at the top of the window 2, and to lower .the

same I attach cables 10 to the blocks 4, said cables passing oversheaves 11, carried bythe sill of a window, and extending through theframework 12 beneath the window and having their ends connected togetherupon the inner side ofthe Window, whereby a person pulling-upon.- thecableslO can easily lower the scraperto Iremove foreign matter from thewindow 2.- U on releasing the cables the band-springs 9, W 'chhave beenplaced under tension, areadapted to return the sera per d position atVthe top of thewin- The application of the device vjust de,-Y scribed toa street-car is clearly illustrated 1n Figs.. 1 to 4, inclusive, of thedrawings, and in, this instance the operator, or motorman of a carmanipulates the device to remove frost, snow, or water that mayadhere tothe window 2 therefrom.

In Fig. 8 of the drawingsI have illustrated a slight modification ofmyimproved window-cleaning device wherein the cables 10 are dispensedwith and the rails 1 provided IOO with slots 14. The blocks 4 areprovided v with rearwardly-extending arms 15, which protrude through'the slots 14. and are pro.

videdwith handles 16. It is only necessary to grip the handles and movethem toward the bottom of the .Window to cleanse the same, thei'latband-springs 9 returning the scraper to its normal posit1on. v d

A still further modification is illustrated 1n IIO Fig. v9 of thedrawings, wherein I dispense i `with the handles 16 and provide theblockarms a with cables 10a, said cables being attached to drums 17,revolubly mountedin the framework of the window. Each drum carries apinion 18, adapted to mesh with a movable rack 19, said rack beingcarried in guides 20 and provided with a handle 21, which` is moved torotate the drums 17 and wind the cables thereon. In this manner thescraper can be drawn downwardly over the window similar to the cables 10o r the handles 16 where used. The construction shown in Fig. 9 of thedrawings is particularly adapted for Pullman cars o r vehicles where`neat window-xtures are necessary.y It is obvious that thewindoweframework must be provided with a horizontal slot to permit ofthe handle 21 rotruding therethrough, the slot being of sircientlengthto allow the handle to be moved therein to lower thel scraperofvmy improved device. v

Such changes in the size, proportion, and minor details of constructionas are permissible by the appended claim may be resorted to wlthoutdeparting from the -spirit and scope of the invention.

What'l claim, and desire to secure by Let` ters Patent, is In awindow-cleaning device, the combinasaid rod, and means connected to saidslideblocks foriactuating the same, substantially as described.

In testimony whereof I afflx my Signature in the presence of twowitnesses.

I ROBERT J. CLARKE. Witnesses s MAX H. SRoLovITz,

A. J. Tarea.

